水稻深施底肥的好处是省肥、肥劲长。促进水稻早生快发。 1976年,我们普遍采用了深施底肥的方法。主要作法有两种:①氨水开沟深施,即旱耙、旱整平后,用拖拉机牵引开沟器,开沟深施。每次施8条垄,沟深3寸,施后捞平。每亩施100斤氨水和50斤磷肥。②全层施肥。即每亩地施碳酸氢铵40斤和磷肥50斤,混拌均匀,在两翻两耙的基础上,在春播前将肥料均匀施在地面,随后立即翻地,深度4寸。去年全大队氨水开沟深施 Deep fertilization of rice is the advantage of fertilizer, fat and long. Promote the rapid early rice growth. In 1976, we commonly used deep base fertilizer method. Main practices in two ways: ① ammonia ditching deep facilities, that is dry rake, dry leveling, with a tractor traction opener, dug deep facilities. Each application of eight ridge, ditch deep 3-inch, after fishing flat. Per mu fertilizer 100 pounds of ammonia and 50 pounds of phosphate fertilizer. ② full-layer fertilization. That is, 40 kg of ammonium bicarbonate and 50 kg of phosphate fertilizer are applied per acre. Evenly mixed, the fertilizer is uniformly applied on the ground before spring sowing, and then immediately turned to the depth of 4 inches. Last year, the entire brigade ammonia trench drench